ADS7863IDBQR datasheet, PDF - EEWORLD Datasheet

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ADS7863IDBQR: DescriptionDUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24; Categorysemiconductor logic; File Size628KB，30 Pages; ManufacturerBurr-Brown; Websitehttp://www.burr-brown.com/

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ADS7863IDBQR Overview

DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24

ADS7863IDBQR Parametric

Parameter Name	Attribute value
Number of functions	2
Number of terminals	24
Maximum operating temperature	125 Cel
Minimum operating temperature	-40 Cel
Rated supply voltage	5 V
Maximum conversion time	13 uS
Maximum linear error	0.0305 %
Maximum limit analog input voltage	2.52 V
Minimum limit analog input voltage	-0.5000 V
Processing package description	GREEN, PLASTIC, SSOP-24
Lead-free	Yes
EU RoHS regulations	Yes
China RoHS regulations	Yes
state	ACTIVE
packaging shape	RECTANGULAR
Package Size	SMALL OUTLINE, SHRINK PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.6350 mm
terminal coating	NICKEL PALLADIUM GOLD
Terminal location	DUAL
Packaging Materials	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE
Sampling Rate	2 MHz
Output format	SERIAL
Type of converter	SUCCESSIVE APPROXIMATION
Number of digits	12
Output bit encoding	2S COMPLEMENT BINARY
Number of analog channels	2
Sample and hold and track and hold	SAMPLE

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Burr Brown Products

from Texas Instruments

ADS7863

863

S78

SBAS383 – JUNE 2007

Dual, 1.5MSPS, 12-Bit, 2 + 2 Channel, Simultaneous Sampling

ANALOG-TO-DIGITAL CONVERTER

FEATURES

•

Four Fully- or Six Pseudo-Differential Inputs

SINAD: 70dB (min), THD: –75dB (max)

Programmable and Buffered Internal 2.5V

Reference

Flexible Power-Down Features

Variable Power Supply Ranges

Low Power Operation: 40mW at 5V

Operating Temperature Range: –40°C to

+125°C

Pin-Compatible with

ADS7861

and

ADS8361

(SSOP package)

DESCRIPTION

The ADS7863 is a dual, 12-bit, 1.5MSPS,

analog-to-digital converter (ADC) with four fully

differential input channels grouped into two pairs for

high-speed, simultaneous signal acquisition. Inputs

to the sample-and-hold (S/H) amplifiers are fully

differential and are maintained differential to the input

of the ADC. This architecture provides excellent

common-mode rejection of 80dB at 50kHz, which is

a critical performance characteristic in noisy

environments.

The ADS7863 is pin-compatible with the

ADS8361,

but offers additional features such as a

programmable reference output, flexible supply

voltage (2.7V to 5.5V for AV

and 1.65V to 5.5V for

), a pseudo-differential input multiplexer with

three channels per ADC, and several power-down

features.

The high-speed, dual serial interface is also

pin-compatible with the

ADS7861

while offering

additional flexibility. The ADS7863 is offered in an

SSOP-24 and a 4x4mm QFN-24 package. It is

specified over the extended operating temperature

range of –40°C to +125°C.

SAR

CHA0+

CHA0-

CHA1+

CHA1-

Input

MUX

S/H

CDAC

Comparator

SDOA

SDOB

APPLICATIONS

•

Motor Control

Multi-Axis Positioning Systems

Three-Phase Power Control

Serial Interface

SDI

CLOCK

CHB0+

CHB0-

CHB1+

CHB1-

REF

SAR

Input

MUX

S/H

CDAC

Comparator

BUSY

CONVST

BGND

REF

OUT

AGND

10-Bit DAC

2.5V Reference

Functional Block Diagram

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas

Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

All trademarks are the property of their respective owners.

PRODUCT PREVIEW information concerns products in the

formative or design phase of development. Characteristic data and

other specifications are design goals. Texas Instruments reserves

the right to change or discontinue these products without notice.

PRODUCT PREVIEW

ADS7863IDBQR Related Products

	ADS7863IDBQR	ADS7863	ADS7863IDBQ	ADS7863I	ADS7863IRGET	ADS7863IRGER	ADS7863IRGE
Description	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24	DUAL 2-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
Number of functions	2	2	2	2	2	2	2
Number of terminals	24	24	24	24	24	24	24
Maximum operating temperature	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel	125 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Rated supply voltage	5 V	5 V	5 V	5 V	5 V	5 V	5 V
Maximum conversion time	13 uS	13 uS	13 uS	13 uS	13 uS	13 uS	13 uS
Maximum linear error	0.0305 %	0.0305 %	0.0305 %	0.0305 %	0.0305 %	0.0305 %	0.0305 %
Maximum limit analog input voltage	2.52 V	2.52 V	2.52 V	2.52 V	2.52 V	2.52 V	2.52 V
Minimum limit analog input voltage	-0.5000 V	-0.5000 V	-0.5000 V	-0.5000 V	-0.5000 V	-0.5000 V	-0.5000 V
Processing package description	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24	GREEN, PLASTIC, SSOP-24
Lead-free	Yes	Yes	Yes	Yes	Yes	Yes	Yes
EU RoHS regulations	Yes	Yes	Yes	Yes	Yes	Yes	Yes
China RoHS regulations	Yes	Yes	Yes	Yes	Yes	Yes	Yes
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
packaging shape	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR	RECTANGULAR
Package Size	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH	SMALL OUTLINE, SHRINK PITCH
surface mount	Yes	Yes	Yes	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm	0.6350 mm
terminal coating	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD	NICKEL PALLADIUM GOLD
Terminal location	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL	DUAL
Packaging Materials	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY	PLASTIC/EPOXY
Temperature level	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE	AUTOMOTIVE
Sampling Rate	2 MHz	2 MHz	2 MHz	2 MHz	2 MHz	2 MHz	2 MHz
Output format	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL	SERIAL
Type of converter	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION	SUCCESSIVE APPROXIMATION
Number of digits	12	12	12	12	12	12	12
Output bit encoding	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY	2S COMPLEMENT BINARY
Number of analog channels	2	2	2	2	2	2	2
Sample and hold and track and hold	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE	SAMPLE

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